Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 127
R. O. U. WaterProofing Will Overcome Your Old Enemy Moisture and Efflorescence FOR CONCRETECONSTRUCTION. Not Only for Waterproofing Con-crete Blocks, but Equally Good for CELLARS, CISTERNSTANKS, FLOORS, Etc R. O. U. Compound—In aacb of 50 lbs, per lb. 12c, discount on ton lots.A 50 lb. Sack will… … R. O. U. MOLD WASH. It is an acknowledged fact by those who have taken oc-casion to study the proposition carefully, that 90 per centof the people maunfacturing concrete blocks or concreteproducts of a similar nature are using their material too dry.Now the absence of a sufficient quantity of water…
